# Pet care calculators for reptiles and aquariums

> Free, evidence-based tools that turn the numbers behind reptile and aquarium husbandry into clear, trustworthy answers.

PetGuideCalc builds calculators from published husbandry standards and veterinary reference ranges. Every tool states its assumptions, units, and sources up front, so you can verify the math behind the result instead of taking it on faith.

Start with the essentials for reptiles and aquariums: UVB lighting doses matched to your species, enclosure setup for beginner snakes, and safe community tank stocking. More tools are in active development.

## Upcoming tools

- **UVB Calculator** — Find the right UVB bulb type, distance, and T5 fixture for your reptile species, based on published exposure guides.
- **Snake Starter Guide** — Enclosure size, temperature gradient, and humidity targets for beginner snakes, with species-specific ranges.
- **Community Tank Stocking** — Tank capacity, bioload, and compatible species for freshwater communities, using standard stocking rules.

## Frequently asked questions

**Q: What is PetGuideCalc?**

PetGuideCalc is a collection of free calculators and short care guides for reptile and aquarium keepers. Each tool states its assumptions, units, and sources so you can verify the math behind the result.

**Q: Are the calculators really free?**

Yes. No accounts, no paywalls, and no data collection beyond basic site analytics. The calculators exist to make evidence-based husbandry easier to apply.

**Q: Where do the values come from?**

Published husbandry standards and veterinary reference ranges, such as UVB exposure guides, enclosure size recommendations, and stocking rules. Every calculator links the sources it uses.

**Q: Can I use these results instead of a veterinarian?**

No. The calculators are educational planning tools, not medical advice. If you have health concerns about your pet, consult a qualified reptile or exotic-animal veterinarian.

_PetGuideCalc — https://petguidecalc-dev.pages.dev_